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Boulder Ventures is an early-stage venture capital firm based in Boulder, Colorado, investing in information technology and biotechnology companies across the Colorado Front Range and the Mid-Atlantic region. Its most recent closed fund, Boulder Ventures VIII, raised $58 million in 2022.
They made 1 investments in the last 12 months. Average disclosed round size is $34.6M (across 19 rounds with reported amounts).
Portfolio
18
Fund Size
$58M
Top Stage
Series B
Last 12 Mo
1
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
19 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Ambrosia Biosciences Inc. | Series B | $100M | Mar 2026 |
| DDMC | Series B | $39M | Jan 2022 |
| MMineralys | Series B | $118M | Jan 2022 |
| MMineralys Therapeutics, Inc. | Series B | $118M | Jan 2022 |
| YYoureka | Series A | $8.5M | Aug 2021 |
 Youreka Labs | Series A | $8.5M | Aug 2021 |
 LightDeck | Series B | $11M | Oct 2020 |
| SStardog Union | Series A | $6M | Oct 2017 |
| SSyncHR | Growth | $16M | Jul 2017 |
| MMiragen Therapeutics | Series C | $41M | Nov 2015 |
| CClarabridge | Series D | $80M | Jan 2013 |
 miRagen Therapeutics, Inc. | Unknown | $20M | Jan 2012 |
| BBarofold | Series A | $12M | Jan 2007 |
 Stardog | Series B | $9M | — |
 ClinOne | Series A | $3M | — |
| ZZenoss | Series C | $25M | — |
 Comeryx | Seed | $7.5M | — |
| ZZenoss Inc | Series C | $25M | — |
| SStardog Union | Series B | $9M | — |
Top Co-Investors
Grotech Ventures7 shared
Samsara BioCapital3 shared
Summit Partners3 shared
HBM Healthcare Investments3 shared
Tenfore Holdings2 shared
Andera Partners2 shared
Adams Street Partners2 shared
Ysios Capital2 shared
SR One2 shared
Sectoral Asset Management2 shared
RA Capital Management2 shared
Rock Springs Capital2 shared
Catalys Pacific2 shared
Atlas Venture2 shared
JAFCO Group Co., Ltd.2 shared
Amgen Ventures2 shared
Salesforce Ventures2 shared
Blue Owl Capital1 shared
BVF Partners L.P.1 shared
Deep Track Capital1 shared
Last updated: 8 September 2026